Loose-leaf book and tray or base



April 1940- H. T. 8166 ET AL 2.197.678

LOOSE-LEAF soox AND TRAY 0R BASEBOAHD FOR USE THEREWITHY' Filed March 29, 1937 2 Sheets-Sheet 1 INvEm-oR HENRY r. 8160 SAMUEL H. SUNDERLAND I By ATTORm H. T. BIGG El AL 2.197.678

LOOSE-LEAF BOOK AND TRAY OR BASEBOARD FOR USE THEREWITH April 16, 1940.

2 Sheets-Sheet 2 1mm T. BIGG sugar. 11. summnmnn 2m *1 7345mm? Filed March 29, 1937 ATTORNEYS Patented Apr. 16, 1940 ,UNITED- STATES LOOSE-LEAF BOOK AND 'rRAYoR BASE- BOARD FOR USE THEREWIVTI-I Henry Thomas Bigg and Samuel Henry Sunderland, Beckenham, England, assignors to Percy Jones (Twinlock) Limited, Beckenham, Kent, England, a corporation of England Application" March 29, 1937, Serial No. 133,696 In Grcat'Britain May 11, 1936 10 Claims. (01. 129-18) This invention relates to loose-leaf books of the kind in which the leaves are held in the bookbetween clamping bars drawn together by springs which may be concealed in leaf aligning or holding posts extending between the clamp-ing'bars, some of these posts being movable along the clamping bars in the longitudinal direction so as to be capable of engaging'inor of being disentended by the application of a relatively small force.

According to this invention, the leaf aligning or holding posts are arranged to engage in curved or angular slots in those edges of the leaves which areheld between the clamping bars, orin notches in opposite edges of the leaves adjacent to the edges held between the clamping bars. The tray or baseboard is provided with cam bars which as the clamping bars, enter slots in the latter to engage movable members in the clamping bars,

such as sliding or pivoted carrier blocks; having the leaf holding posts mounted thereon. Thesaid posts which may be arranged in pairsslidable one within the other, can thus also be moved longitudinally along the clamping bars to release the'leaves. Latches are provided to lock these carrier blocks against movement when they occupy positions in which the posts mounted thereon are in their sheet aligning and holding positions, and these latches are arranged so that at the commencement of the moving apart of the carrier blocks and allow the latter to move.

In the accompanyingdrawings:

Figure l is a plan View of clamping bars carrying leaf aligning and'holding posts and Figure 2 is a side view thereof with the cover plate of the clamping bar removed to show movable members carrying the said posts, and latches for holding these members in predetermined positions, in accordance with this invention.

Figure 3 is a view similar to Figure 1 showing the platforms are moved apart carrying with them I platforms the latches are moved to release the I the clamping barsand the leaf holding posts in their leaf releasing positions, and

Figure 4 is a side view thereof, t

Figure 5 is a detail viewillustrating an alter native form of latch. 1

Figure 6 is a plan View of a tray provided with movable platforms and ramps to cooperate with; the clamping'bars and members carrying the leaf holding posts in accordance with this invention.

Figure 7 shows a central vertical section of the said tray.

Figure 8 is a partial side view of the same.-

Figure 9 illustrates a modification hereinafter referred to.

v As shown in Figures 1130 4, the clamping bars I carry leaf aligning posts 2 and leaf holding posts 3. These posts are arranged in pairs slidable one within another tovavoid a gap being left between the ends of the posts when the clamping bars are moved apart, one member of each pair being carriedby one of the clamping bars and the othermember of the pair by the other clamping bar. The clamping bars are drawn togetherin the known manner by springs '50: (FigureZ) concealed within the said posts. The leaf align ing posts 2 are secured directly to the clamping bars I and the leaf holding-posts 3 may if desired be carried on sliding blocks but in the drawings they are shown carried on blocks or levers f 4 pivotally mounted at 5 within the clamping j bars which are provided with cover plates 6- on whichbarrel portions 7 are formed to'receive hinge pins for the attachment of guard sheets or cover boards Ba for enclosing the leaves held in the clamping bars, as shown in Figures '7 and 8. The cover plates 6 are secured to the clamp ing bars I by screws or rivets inserted in the holes 8 and the leaf holding posts project from the levers 4 through slots Sin the clampingbars' I, the arrangement illustrated being suitable for holding leaves having notches in opposite'edges of the said leaves.

The posts 3 which are movable between the positions in which theyare shown in full lines in Figure 3, the clamping. bars then being drawn apart to allow leaves to be inserted or withdrawn,

and the positionsindicated in broken lines, can,

by the spring I5.

mounted on a pivot I l and acted upon by a spring l5. When the locking lever is in the position shown in Figure 2 the lever 4 and its post 3 are held against movement. Part of the lever 4 overlaps part of the locking lever [B and an aperture [6 is formed in the wall of the clamping bar opposite to these overlapping parts through which an implement can be inserted to act first on the lever I3 to move it from its locking position and then to act on both levers l 3 and 4 so as to move the latter to its leaf releasing position as shown in Figure 4.

In the modified construction shown in Figure 5, the post 3 is carried on a lever 4a carried on the pivot pin 5 and acted upon by the spring Ill. The lever 4a has a lug. I? on one arm thereof which can be engaged by a hook E8 on a locking lever 13a mounted on the pivot pin I4 and acted upon Overlapping parts of the levers 4a and [3a are opposite to the aperture 16 so that by the insertion of an implement through this aperture the lever 83a can be moved to unlatch the lever 4a and thereafter to move the lever 4a to carry the post 3 to a position in which it is drawn out of engagement in a notch or slot in the edge of a bundle of leaves placed between the clamping bars.

The levers 4 and 40. instead of being angular may be straight, or sliders may be employed in place of the pivoted members.

In Figures 6, 7 and 8, a tray or baseboard I9 is shown recessed to provide a slideway for guide blocks 20 extending downwardly from platforms 2| on which the clamping bars i can rest with pins 22 extending upwardly from the platforms in contact with the inner sides of the clamping bars. The guide blocks 20 are provided with bars 23 having rack teeth formed thereon in engagement with a pinion 2% carried on a pin 25, rotatable by means of a handle 25 whereby the platforms 2| can be moved to vary the distance between them and through the pins 22 to cause the clamping bars l tobe moved apart against the action of the springs la. An arrangement of linkwork may be provided in place of the rack and pinion mechanism, and means may be provided for locking the handle 26 in any desired position.

Cam bars or ramps 27 are fixed on the tray so that the platforms can slide beneath them and the said bars or ramps by entering the apertures H6 will act upon the locking levers it or l3a, and the levers t or la to effect the desired movement of these levers to cause the leaf holding posts to release the leaves simultaneously with the opening apart of the clamping bars. It is obvious that the effective faces of the cam bars may be arranged to face upwardly or laterally with respect to the edges of the apertures l6, according to the arrangement of the lovers 5 or 4a; The cam bars by entering the apertures i6 and moving over the inner faces of walls of the clamping bars so as to take up a position above these Walls will prevent the clamping bars from being lifted or moved laterally on the said platforms. If necessary means such as pins on the platforms engaging in holes in the clamping bars may be provided to prevent the clamping bars from being lifted from or moved laterally on the said platforms by the cam bars thrusting against the levers 4, 4a, 53, l3a.

In an alternative arrangement, shown in Fig ure 9, the employment of cam bars or ramps 27 is avoided and pins 28 are provided on the platforms to enterholes 29 in the clamping bars 1 when the book is placed on the platform, the weight of the book being then effective for unlatching and moving the levers 412, I319, these pins 28 also acting in place of the pins 22 to ensure movement of the clamping bars by the platforms 2| as the latter are moved by the handle 26, as well as to prevent displacement of the clamping bars on the said platforms.

We claim:

l. .A loose-leaf book comprising clamping bar drawn together by springs, carrier blocks mounted in saidIclamping bars and movable relatively thereto, leaf holding posts extending between the clamping bars and carried on said carrier blocks so as to be movable in a substantially longitudinal direction with respect to the said clamping bars, and an edge portion on each carrier block disposed in alignment with an aperture in the clamping bar adapted to be moved to effect movement of the leaf holding posts and movable by a thrust exerting implement inserted through the said aperture.

2. A loose-leaf book comprising clamping bars drawn together by springs, spring pressed carrier blocks mounted in said clamping bars, leaf holding. posts extending between the clamping bars and carried on said carrier blocks so as to be movable in a substantially longitudinal direction with respect to the said clamping bars, an edge portion on each carrier block disposed in alignment with an aperture in its clamping bar, and spring impelled latches respectively engaging the said carrier blocks.

3. A loose-leaf book comprising clamping bars drawn together by springs, spring pressedcaredge portions of each carrier block and of itslatch arranged in alignment with a corresponding aperture in the said clamping bars.

4. A- loose-leaf book comprising clamping barsdrawn together by springs, spring pressed carrier blocks mounted in the said clamping bars, leaf holding posts carried on the said carrier blocks so as to be movable in a substantially longitudinal direction with respect to the clamping bars, spring impelled latches and a stud on each carrier block extending into a slot in the corresponding latch.

5. A loose-leaf book comprising clamping bars drawn together by springs, carrier blocks mounted in the said clamping bars and movable relatively thereto, springs acting on the said carrier blocks, leaf holding posts carried by the said movable carrier blocks, and spring impelled latches each arranged to releasably engage a coacting part of the corresponding carrier block.

6. A loose-leaf book comprising clamping bars drawn together by springs, carrier blocks mounted in the said clamping bars and movable relatively thereto, springs acting on the said carrier blocks, leaf holding posts carried by the said carrier blocks, spring impelled latches each having a part arranged to releasably engage a coacting part of the corresponding carrier block, and edge portions of the said latches and carrier blocks spaced apart from the said coacting parts arranged in alignment with corresponding apertures in the clamping bars so as tobe operated in succession by a thrust exerting implement inserted in the corresponding aperture.

the clamping bars, spring impelled latches in releasab'le engagement with the carrier blocks respectively and cover plates attached to the clamping bars to enclose the carrier blocks and said latches. v

8. A loose-leaf book comprising clamping bars drawn together by springs, leaf holding posts extending between I the clamping bars, carrier blocks on which the said posts are supported so as to be movable substantially in the longitudinal direction relatively to the said bars, and an edge portion on each carrier block to be engaged by a thrust exerting implement inserted through an aperture in the clamping bar, a part of the. clamping bar adjacent to the said aperture serving as an abutment for the such'implement while exerting a thrust upon the carrier block.

9. A loose-leaf book comprising clamping bars drawn together by springs, carrier blocks'mounted in said clamping bars and movable relatively thereto, leaf holding posts extending between the clamping bars and carried on said carrier blocks so as to be movable in a substantially longitudinal direction with respect to the said clamping bars, an edge portion on each carrier block disposed in alignment with an aperture in the clamping bar adapted to be moved to eifect movement of the leaf holding posts by a thrust v exerting implement inserted through the said aperture, and leaf aligning posts fixed to and extending between the said clamping bars.

10. A loose-leaf book comprising clamping bars drawn together by springs, carrier blocks mountedin and movable relatively to the said clamping bars, leaf holding posts extending between the clamping bars and carried on the carrier blocks, latches arranged to releasably hold the leaf holding posts aaginst movement relatively to the clamping bars, and leaf aligning posts fixed to and extending between the said clamping bars.

HENRY THOMAS .BIGG.

SAMUEL HENRY SUNDERLAND. 

